Vault cover



(No Model.) 2 sheets-S118 1.

J. JACOBS.

' VBNTILATING VAULT COVER.

No. 518,888. Patented Apr. 24, 1894.

(No Model.) 2 Sheets-Sheet 2. J. J AGOBS.

VENTILATING VAULT COVER.

No. 518,888. Patented Apr. 24, 1894.

n45 unit/MAL LITNOGRAPHING COMPANY. wnsnma'rou. n. c.

U ITED STATES PATENT OFFICE.

JACOB JACOBS, OF'NEW YORK, N. Y.

VENTILATING VAULT-COVER.

SPECIFICATION forming part of Letters Patent No. 518,888, date April'Applicetion filed June 9,1893- $erial No. 477,093- (No model.)

To all whom it may concern.-

Be it known that LJAOOB JACOBS, of New York, 1n the county of New York,and in the State of New York, have invented certain new andusefullmprovements in Ventilating Vault-Covers; and I do hereby declarethat the following is a full, clear, and exact description thereof,reference being had to the accompanying drawings, in which- Figure 1 isa perspective view of my apparatus as arranged for use in a side walk, a

portion of the walk and of the frame of the apparatus being broken awayto show the interior construction. Fig. 2 is a plan view of saidapparatus from the upper side, the cover being removed and the louversshown open, and Figs. 3 and 4. are sections upon a vertical central lineand show, respectively, the

. louvers when opened and when closed.

Letters of like name and kind refer to like parts in each of thefigures.

The object of myinvention is to enable the space beneath a side-walk tobe easily and eflectively ventilated without causing an obstruction uponthe walk or permitting rain to enter such space, and my said inventioncon sists in the construction and combination of parts, substantially asand for the purpose hereinafter specified. t

In the carrying of my invention into practice, any desired form ofopening a may be employed in the side-walk A but I preferably make suchopening round, as shown, and in; close the sides of the same by means ofa metal ring B that at its upper end is provided with a flange b whichextends horizontally outward and rests within agroove (2/ in the sidewalk, with its top flush with the face of said walk. Within the upper,inner corner of the ring B is formed a rabbet b that receives the edgeof a metal disk or cover 0, which cover has its central portion providedwith glazed light openings 0 and c and between the same and itsperiphery has concentric rows of small openings 0' and c for the passageof air. At the-lower end of the ring B, upon its inner face, is formed agutter b which is provided with suitable means for conveying away waterand receives the outwardly and downwardly projecting edge 01 of a metalring D, which ring from thence extends upward to or near the lower faceof the cover 0, and within its sides is provided with a series of equidistant openings (1' and d that extend from near its lower edge nearlyto its upper edge. Within each of the openings at is a metal plate Ewhich near its center, vertically is pivoted at its side edges to orupon the ring, has a width somewhatv edge, which operates to maintain itnormally in a closed position and to its upper end has secured one endof a rod F that from thence extends inward and isattached to a ring Gwhich serves to connect the inner ends of all of such rods. If now thering G is pulled downward, each of the louvers E will be turned upon itspivotal bearings and the openings d and (1 will be unclosed to permit ofthe passage of air; while by releasing said ring from downward pressuresaid louvers will automatically resume their normal positions and thepassage of air through said openings will be prevented.

The inner line of the openings 0' and c of the covering plate 0 is justoutsideof the upper edge of the ring D so that water passing downwardthrough the former would pass into and be conveyed harmlessly away fromthe gutter 27*, while for purposes of ventilation, air will pass freelybetween the space beneath and the space above the walk, through saidopenings 0 and c and the louvered openings cl and 01. Any desired meansmay be employed for manipulating the louvers.

Having thus described my invention, what I claim is- 1. In combinationwith a stationary vault cover provided with ventilating openings, a ringbelow such cover, within the line of such openings, and provided withopenings in its side for the passage of air, and independent plates toclose said openings connected to a common operating means, substantiallyas and for the purpose specified.

2. In combination with a stationary vault cover provided withventilating openings, a

ring below such cover provided with openings in its side for the passageof air, and a pivoted plate for each opening that is offset so that aportion thereof is on each side of its opening and adapted to engage theinner and outer sides of the ring, respectively, substantially as andfor the purpose shown.

3. In combination with a stationary vault cover provided withventilating openings, a vertically arranged ring below such cover,provided with openings in its side for the passage of air, pivotedplates for the openings and rods running from the plates to the centerof the ring where they are connected together, substantially as and forthe purpose specified.

JACOB JACOBS.

\Vitnesses:

Gno. W. TEEL, DAVID G. BEECHING.

